Docs App: drag&drop based resorting for tabs

& container.Base => insert event

Added the drag&drop main thread addon to the tab examples

Merge pull request #1287 from neomjs/main

Merge pull request #1286 from neomjs/dev

draggable.toolbar.SortZone: bug fix

Merge pull request #1285 from neomjs/main

Merge pull request #1284 from neomjs/dev

draggable.toolbar.SortZone: support for vertical drag&drop

Merge pull request #1283 from neomjs/main

Merge pull request #1282 from neomjs/dev

draggable.DragZone: theming support

e.g. move tabs inside the covid app, click on the "switch theme" button, move another tab.

covid app(s): subscribed to the new tabContainer moveTo event

to keep the app related main tabs order in sync

sortable tabs for the covid dashboard & sw covid dashboard apps

Merge pull request #1272 from neomjs/main

Merge pull request #1271 from neomjs/dev

controller.Component: onViewParsed() starting point

Merge pull request #1250 from neomjs/main

Merge pull request #1249 from neomjs/dev

improving the drag&drop implementation

Merge pull request #1248 from neomjs/main

Merge pull request #1247 from neomjs/dev

CLI guide, list dragZone

Merge pull request #1233 from neomjs/main

Merge pull request #1232 from neomjs/dev